131141240266 has 4 divisors (see below), whose sum is σ = 196711860402. Its totient is φ = 65570620132.

The previous prime is 131141240261. The next prime is 131141240281. The reversal of 131141240266 is 662042141131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 126398025625 + 4743214641 = 355525^2 + 68871^2 .

It is not an unprimeable number, because it can be changed into a prime (131141240261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32785310065 + ... + 32785310068.

Almost surely, 2^131141240266 is an apocalyptic number.

131141240266 is a deficient number, since it is larger than the sum of its proper divisors (65570620136).

131141240266 is an equidigital number, since it uses as much as digits as its factorization.

131141240266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65570620135.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 131141240266 its reverse (662042141131), we get a palindrome (793183381397).

The spelling of 131141240266 in words is "one hundred thirty-one billion, one hundred forty-one million, two hundred forty thousand, two hundred sixty-six".